IMO Mathematics Olympiad (SOF) Class 9: Questions 114  119 of 919
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Question number: 114
» Lines, Angles and Quadrilaterals
Question
In the given figure and, then value of x is________.
Choices
Choice (4)  Response  

a.  140˚ 

b.  125˚ 

c.  135˚ 

d.  105˚ 

Question number: 115
» Lines, Angles and Quadrilaterals
Question
How many sides does a regular polygon have, each angle of which is of measure 135˚?
Choices
Choice (4)  Response  

a.  6 

b.  9 

c.  8 

d.  7 

Question number: 116
» Lines, Angles and Quadrilaterals
Question
Two supplementary angles differ by 94˚. Then the angles are ________
Choices
Choice (4)  Response  

a.  67˚, 113˚ 

b.  120˚, 60˚ 

c.  142˚, 38˚ 

d.  137˚, 43˚ 

Question number: 117
» Lines, Angles and Quadrilaterals
Question
In the figure below, lines PQ and JK intersect at O. if and, then are equal to ________
Choices
Choice (4)  Response  

a.  90˚ 

b.  54˚ 

c.  58˚ 

d.  56˚ 

Question number: 118
Question
A die is rolled 10,500 times. The frequency of each outcome is shown in the table. What is the empirical probability of the outcomes of multiples of 3?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 119
» Lines, Angles and Quadrilaterals
Question
In the given figure, and . Then ∠URS is________
Choices
Choice (4)  Response  

a.  140˚ 

b.  160˚ 

c.  190˚ 

d.  120˚ 
